Color... Gold Earring Shape... Catch/Stud This is a set of 3 pairs (6 pieces) of K18 silicone-covered earring backs. 920 yen per pair. This set includes a total of 3 pairs: star-shaped, heart-shaped, and round. Stamped with K18. Sizes are approximately: star-shaped 5.6mm, thickness 2.6mm; round 4.6mm, thickness 2.6mm; heart-shaped 4.7mm x 5.8mm, thickness 3.5mm. Suitable for posts up to 0.7mm in diameter, but can also be used with thicker posts due to their expanding structure. The pearl earrings in the image are not included. They are 6mm pearls. Please use them as a size reference. #EarringBacks #EarringParts #Fasteners #StarShaped #SiliconeBacks #K18 K18 Silicone 18k Gold Earring Backs, 3 pairs, star-shaped, heart-shaped, round